:
IS 12998 (Part 1) : 1991 ISO 1680-1 Reviewed In : 2022
IS Title/आईएस शीर्षक:
Methods of measurement of airborne noise emitted by rotating electrical machinery: Part 1 engineering method for free - Field conditions over a reflecting plane (Withdrawn)
Superseded by IS/प्रतिस्थापित आईएस:
IS 12998 : 2024
Degree of Equivalence/समतुल्यता स्तर:
Identical under dual numbering
Number of Revisions/पुनरीक्षणों की संख्या:
New Standard
Number of Amendments/संशोधनों की संख्या:
No amendment issued